AsTeRICS homepage: sticky settings panels

[ChrisVeigl]

if settings panels are opened on the AsTeRICS homepage
(e.g. solution settings via https://www.asterics.eu/solutions/ or page settings via the settings button)
the settings panels remain sticky on top of the page content (even when the page is changed).
maybe a seperate popup window or another solution to display the settings would be better

[sabicalija]

I've opened and copied the issue to asterics/asterics-docs#11.